Merge tag 'v7.1-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Fix for two ACL issues (security fix to validate dacloffset better
   and chmod fix)

 - Fix out of bounds reads (in check_wsl_eas and smb2_check_msg for
   symlinks)

 - Two Kerberos fixes including an important one when AES-256 encryption
   chosen

 - Fix open_cached_dir problem when directory leases disabled

* tag 'v7.1-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: validate dacloffset before building DACL pointers
  smb/client: fix out-of-bounds read in smb2_compound_op()
  smb/client: fix out-of-bounds read in symlink_data()
  smb: client: Zero-pad short GSS session keys per MS-SMB2
  smb: client: Use FullSessionKey for AES-256 encryption key derivation
  smb: client: use kzalloc to zero-initialize security descriptor buffer
  cifs: abort open_cached_dir if we don't request leases